This battery indicator has 10 segment LED graph display. Different light displays different battery level visually.

Product descriptionNoticeThis Battery Indicator fits 12V 24V 36V 48V and 72V Lead-acid Batteries. Please connect the correct voltage to your battery indicator as noted on the meter. Failure to connect to the correct voltage will damage the batery indicator causing it to function abnormally. Make sure your "C" terminal is either connected to the Battery "+" or a Key switch,otherwise meter scans from full to empty then shuts off. The second LED from the left flashes as a warning that the batteries voltage has been discharged to 80% of their capacity. At a 90% battery discharge, the red and yellow LEDs will alternately flash to indicate a very low voltage capacity is remining. Meter will stuck while charging, once the the battery voltage reach to the voltage of charger(fully charged), Meter will cycle through for continuous minutes and stay "full" position. Meter will stay full position while first connected with batteries and move to the actual voltage level 155 seconds later.

************************************************* Dear customers,If you are interested in any of our product, please feel free to contact me by email or as the way below.Thanks & Best Regards!*************************************************Amy Liang (Overseas Sales Department)